"Ammon Michael Costa was born at Tobey Hospital in Wareham, MA on Friday, July 27th," 24-year-old DelGrosso -- now officially Ashly Costa -- announced on her personal website. "I cannot express the love I feel now for this little bundle and what a wonderful blessing it is to be a mother."

DelGrosso finished third on Dancing with the Stars first season when she was paired with ex-New Kids on the Block singer Joey McIntyre; came in seventh when partnered with rapper Master P during the show's second season; and was eliminated after only three weeks of dancing with actor Harry Hamlin during the show's third season. However when the show's fourth season cast was announced last spring, DelGrosso's name was noticeably absent.

"I just received word that the producers will not be taking me back for season four. This is due to the fact that I am expecting my first baby in July," DelGrosso announced on her website at the time. "As disappointing as it is for me to not be on the show this season I am so excited to have my first baby and to be a mom."

DelGrosso and Costa met in April 2005 during the filming of Dancing with the Stars first season. The couple began dating the following summer and married in October 2006.